Lets you play your favorite crossword puzzle in the browser.
Using handwritten edge detection for field placement
Plus client side file upload which gets saved to localstorage as text : )
And some odd pdf to canvas magic which doesn't work all that well cross browsers...
Check the source for all the weirdness. It can definitely be improved.
Does not play well with iPhones. Try Chrome : )
It needs work in general actually, but did not find the time : p